CVE-2026-40564

Files or Directories Accessible to External Parties, Server-Side Request Forgery SSRF vulnerability in Apache Flink Kubernetes Operator. The FlinkSessionJob jarURI is currently not validated so that it points to user-owned files or addresses. This lets a user with CR create permissions read files...

CVE-2026-40564 Apache Flink Kubernetes Operator: Server-Side Request Forgery and local file access in Kubernetes Operator

Files or Directories Accessible to External Parties, Server-Side Request Forgery SSRF vulnerability in Apache Flink Kubernetes Operator. The FlinkSessionJob jarURI is currently not validated so that it points to user-owned files or addresses. This lets a user with CR create permissions read files...

CVE-2026-40564

The CVE concerns Apache Flink Kubernetes Operator where FlinkSessionJob.jarURI is not validated. In versions 1.3.0 through 1.14.x (up to 1.15.0), a user with CR create permissions can cause the operator pod to fetch arbitrary URLs or access the pod’s filesystem via the jarURI, enabling SSRF and l...